Hello @Chris_Swanson , As you rightly guessed from the previous response to Ability to add button or hyperlink to a form in workspace , the feature that you are requesting for is in our medium term roadmap.
We already have a form designer (Form View) - We will pretty soon be working on another iteration to the form designer. We also will be allowing end users to specify such a form as the one appearing on a ‘Preview row’ popup action. And possibly other places in the future - For eg the approval step of an approval workflow ( approve Leave Application etc).
Will update this space as the dates/ETA become clearer.